diff --git a/phpBB/phpbb/session.php b/phpBB/phpbb/session.php
index 93070dae09..b8a28ae164 100644
--- a/phpBB/phpbb/session.php
+++ b/phpBB/phpbb/session.php
@@ -1081,8 +1081,7 @@ class session
 		* @event core.session_gc
 		* @since 3.1.5-RC1
 		*/
-		$vars = array();
-		extract($phpbb_dispatcher->trigger_event('core.session_gc', compact($vars)));
+		extract($phpbb_dispatcher->trigger_event('core.session_gc'));
 
 		return;
 	}